asinah samvisams tisthan
bhuñjanah paryatan mahim
apasyat tanmayam jagat
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
While sitting on his throne or in his sitting room, while lying on his bed, or, indeed, while situated anywhere, and while eating, sleeping or walking, Kamsa saw only his enemy, the Supreme Lord, Hrsikesa. In other words, by thinking of his all-pervading enemy, Kamsa became unfavorably Krsna conscious.
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
Srila Rupa Gosvami has described the finest pattern of devotional service as anukulyena krsnanusilanam, or cultivating Krsna consciousness favorably. Kamsa, of course, was also Krsna conscious, but because he regarded Krsna as his enemy, even though he was fully absorbed in Krsna consciousness, his Krsna consciousness was not favorable for his existence. Krsna consciousness, favorably cultivated, makes one completely happy, so much so that a Krsna conscious person does not consider kaivalya-sukham, or merging into the existence of Krsna, to be a great gain. Kaivalyam narakayate. For a Krsna conscious person, even merging into the existence of Krsna, or Brahman, as impersonalists aspire to do, is uncomfortable. Kaivalyam narakayate tridasa-pur akasa-puspayate. Karmis hanker to be promoted to the heavenly planets, but a Krsna conscious person considers such promotion a will-o’-the-wisp, good for nothing. Durdantendriya-kala-sarpa-patali protkhata-damstrayate. Yogis try to control their senses and thus become happy, but a Krsna conscious person neglects the methods of yoga. He is unconcerned with the greatest of enemies, the senses, which are compared to snakes. For a Krsna conscious person who is cultivating Krsna consciousness favorably, the happiness conceived by the karmis, jñanis and yogis is treated as less than a fig. Kamsa, however, because of cultivating Krsna consciousness in a different way that is, inimically was uncomfortable in all the affairs of his life; whether sitting, sleeping, walking or eating, he was always in danger. This is the difference between a devotee and a nondevotee. A nondevotee or atheist also cultivates God consciousness by trying to avoid God in everything. For example, so-called scientists who want to create life by a combination of chemicals regard the external, material elements as supreme. Such scientists do not like the idea that life is part and parcel of the Supreme Lord. As clearly stated in Bhagavad-gita (mamaivamso jiva-loke jiva-bhutah), the living entities do not arise from a combination of material elements, such as earth, water, air and fire, but are separated portions of the Supreme Personality of Godhead. If one can understand the position of the living entity as a separated portion of the Supreme Personality of Godhead, by studying the nature of the living entity one can understand the nature of the Supreme Godhead, since the living entity is a fragmental sample of the Godhead. But because atheists are not interested in God consciousness, they try to be happy by cultivating Krsna consciousness in various unfavorable ways.
Although Kamsa was always absorbed in thoughts of Hari, the Supreme Personality of Godhead, he was not happy. A devotee, however, whether sitting on a throne or beneath a tree, is always happy. Srila Rupa Gosvami resigned from office as a government minister to sit beneath a tree, yet he was happy. Tyaktva turnam asesa-mandalapati-srenim sada tucchavat (Sad-gosvamy-astaka 4). He did not care for his comfortable position as minister; he was happy even beneath a tree in Vrndavana, favorably serving the Supreme Personality of Godhead. This is the difference between a devotee and a nondevotee. For a nondevotee, the world is full of problems, whereas for a devotee the entire world is full of happiness.
visvam purna-sukhayate vidhi-mahendradis ca kitayate
yat-karunya-kataksa-vaibhavavatam tam gauram eva stumah
This comfortable position of a devotee can be established by the mercy of Lord Caitanya Mahaprabhu. Yasmin sthito na duhkhena gurunapi vicalyate (Bg. 6.22). Even when a devotee is superficially put into great difficulty, he is never disturbed.